Polyimide powder and method for producing the same

Details Polyimide powder and method for producing the same Polyimide powder and method for producing the same

1986-04-18

1988-07-05

Kittle, John E.

Stock material or miscellaneous articles

Coated or structually defined flake, particle, cell, strand,...

Particulate matter

4284735, 528188, 528189, B32B 316, B32B 2700, C08G 7310, C08J 312

Patent

active

047554282

ABSTRACT:
A polyimide powder which can provide a molding having excellent both strength and heat resistance by heat-press molding, and a method for producing such polyimide powder are disclosed. The polyimide powder comprises spherical polyimide particles having a particle size distribution of from 0.5 to 20 .mu.m and a mean particle diameter of from 1 to 15 .mu.m, and comprising a repeating unit represented by the formula ##STR1## wherein Ar represents an aromatic diamine residue.

REFERENCES:
patent: 3249588 (1966-05-01), Gall
patent: 4473525 (1984-09-01), Sasaki et al.
patent: 4520071 (1985-05-01), Noda et al.
patent: 4528004 (1985-07-01), Makino et al.
patent: 4568715 (1986-02-01), Itatani et al.

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